SFA-5000 • SFA-10000 Profibus
Hardware number of turns
=
4,096
= 2.048
Number of revolutions
2,000
It follows that, for 96 revolutions (4,096 - 2 * 2,000 = 96), the encoder will work
within the "Red Zone" limits.
NOTE
The “Red Zone” status is indicated by the green LED flashing while the red
LED is OFF (see the “4.6 Diagnostic LEDs (Figure 1)” section on page 30).
When the encoder is operating within the limits of the “red zone” (i.e. for
8,192 cpr * 96 revolutions = 786,432 counts: 15,597,567 … 16,383,999), the
transmitted position is consistent with the set resolution: it is calculated so
that the last position within the “red zone” before crossing the zero position
is
-1”.
Please be careful using the position information sent by the encoder when it
is operating within the limits of the “red zone”. When the encoder crosses
from the normal status to the “red zone” status (and vice versa), a position
information error occurs. See the Figure above: when entering the “red
zone” the position information jumps from 16,383,999 to 15,597,567!
MAN SFA_5000_10000_PB E 1.0
Profibus® interface
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